You're watching a veterinarian perform a surgical procedure to determine the sex of a bird. A male bird's testes are difficult to find because they're A)

external.

B)

everted.

C)

internal.

D)

vestigial.

b.have there own function.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

the endomembrane system i think